/*
GanttProject is an opensource project management tool. License: GPL3
Copyright (C) 2011 Dmitry Barashev

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 3
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/
package net.sourceforge.ganttproject.gui.options;

import java.awt.Component;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;

import net.sourceforge.ganttproject.gui.EditableList;
import net.sourceforge.ganttproject.gui.options.model.GPOptionGroup;
import net.sourceforge.ganttproject.language.GanttLanguage;
import net.sourceforge.ganttproject.roles.Role;
import net.sourceforge.ganttproject.roles.RoleImpl;
import net.sourceforge.ganttproject.roles.RoleManager;
import net.sourceforge.ganttproject.roles.RoleSet;

/**
 * Provides project roles page in the project settings dialog.
 *
 * @author dbarashev (Dmitry Barashev)
 */
public class ProjectRolesOptionPageProvider extends OptionPageProviderBase {
    private EditableList<Role> myRolesList;

    public ProjectRolesOptionPageProvider() {
        super("project.roles");
    }
    @Override
    public GPOptionGroup[] getOptionGroups() {
        return new GPOptionGroup[0];
    }
    @Override
    public boolean hasCustomComponent() {
        return true;
    }

    @Override
    public Component buildPageComponent() {
        ArrayList<Role> roles = new ArrayList<Role>(Arrays.asList(getRoleManager().getProjectLevelRoles()));
        myRolesList = new EditableList<Role>(roles, Collections.<Role>emptyList()) {
            @Override
            protected Role updateValue(Role newValue, Role curValue) {
                curValue.setName(newValue.getName());
                return curValue;
            }

            @Override
            protected Role createValue(Role prototype) {
                RoleSet projectRoles = getRoleManager().getProjectRoleSet();
                return projectRoles.createRole(prototype.getName(), projectRoles.getRoles().length);
            }

            @Override
            protected void deleteValue(Role value) {
                getRoleManager().getProjectRoleSet().deleteRole(value);
            }

            @Override
            protected Role createPrototype(Object editValue) {
                if (editValue == null) {
                    return null;
                }
                return new RoleImpl(0, String.valueOf(editValue), null);
            }

            @Override
            protected String getStringValue(Role role) {
                return role.getName();
            }
        };
        myRolesList.setUndefinedValueLabel(GanttLanguage.getInstance().getText("optionPage.project.roles.undefinedValueLabel"));
        return OptionPageProviderBase.wrapContentComponent(
            myRolesList.createDefaultComponent(),
            GanttLanguage.getInstance().getText("resourceRole"),
            GanttLanguage.getInstance().getText("settingsRoles"));
    }

    private RoleManager getRoleManager() {
        return getProject().getRoleManager();
    }

    @Override
    public void commit() {
        if (myRolesList != null) {
            myRolesList.stopEditing();
        }
    }
}
